To me it sounds like it could be connected with implantation spotting.
i know that often with multiple conceptions there maybe implantation bleeding. Try not to worry and get the prog level test done if u can.
Thanks ladies for your reponses.
I had implantation bleeding at 4 weeks ,will get my levels done today and stay hopeful for the best.
I had brown spotting around that same time and then had. Little red spotting over the next few weeks. I'm now pregnant with twins. Don't let it stress you out although that's very hard to do.